The monument was built to commemorate the millennium but has since grown out of control and looked untidy.

Large overhanging trees have been cut down during the past two years, as well as improvements to the walls and routes around the maze, the planting of new fruit trees, and the excavation of a beautiful painting that had become buried.

Ryan Murphy, the Lord Mayor of Belfast, praised the Cave Hill Conservation Campaign's renovation and revitalization of the maze.

“It honours volunteers and serves as a bright illustration of the great range of activities and locations that can be found in our parks and open spaces.”

“Over the past two years, the project team has painstakingly worked to restore this distinctive aspect of the Belfast Castle grounds.”

“The maze is an underutilised tourism attraction that will surely be crucial in drawing more visitors and people to the region.”

Belfast Castle's maze was in risk of being forgotten, according to Cave Hill Conservation Group chairman Cormac Hamill.

“We had the notion to build a maze there to celebrate the century, he added, more than 20 years ago. The Belfast City Council completed the job.”

“Since then, it had become overgrown and abandoned, so two years ago, we decided to rehabilitate it as a peaceful relaxing site as well as a location to enthral and amuse youngsters.”

“We have a lot of devoted volunteers, and we have received assistance from several local community organisations.”

“Over the past two years, Belfast City Council has been incredibly supportive of the work, and together we have given the maze a place and function within the estate.”